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  • 1 Votes
    7 Posts
    2k Views
    H

    For the record, this was a perfectly good question. The QAbstractItemModel::createIndex() docs do not state that it embeds a model pointer into the index it creates, nor do the QModelIndex docs mention the private constructor that makes it possible.

    This makes QModelIndex::parent() look suspicious if you happen to be troubleshooting a problem. If you want to be sure your model is implemented correctly, you have to put aside the docs and dig up the inline function definitions in qabstractitemmodel.h.

  • 0 Votes
    5 Posts
    2k Views
    Y

    Thank you @mrjj and @Christian for answer. I am able to make user Checkable.

    class CustomListModel : public QStandardItemModel {
    public:
    Qt::ItemFlags CustomListModel::flags(const QModelIndex & index) const {
    Qt::ItemFlags defaultFlags = QStandardItemModel::flags(index);
    if (index.isValid()) {
    return defaultFlags | Qt::ItemIsUserCheckable;
    }
    return defaultFlags;
    }

    CustomListModel(const int row, const int coloumn) : QStandardItemModel(row, coloumn) { }

    };

    and modification.
    hwListProxyModel->setSourceModel(new CustomListModel (0, 0));

  • 0 Votes
    4 Posts
    2k Views
    kshegunovK

    @michelson said:
    Hello,

    I assumed i had to reimplement QItemDelegate::setModelData(...)

    I think this should suffice for your case. You can of course always create your own model as @SGaist suggested. As for your request for additional material:

    Here is an overview of the model-view framework A simple spinbox delegate example Icons example that uses delagets

    I hope this helps.
    Kind regards.

  • 0 Votes
    4 Posts
    1k Views
    M

    Hi,

    internalPointer() is basically used when you use createIndex().
    As I said the internal structure is not specified in the documentation; so if you want to understand the exact implementation you have to have a look in the Qt sources